Citrine Physical Properties

Citrine Physical Properties loose sale price & Citrine Gemstone Information

  • Citrine Chemical composition: SiO2 (minor Fe3+ impurities cause citrine's color)

  • Class: tectosilicate

  • Crystal system: Hexagonal-R; 32 (trigonal-trapezohedral)

  • Crystal habit: Macroscopic crystals occur as horizontally striated hexagonal prisms terminated by a combination of positive and negative rhombohedrons forming six sided pyramids. Citrine also occurs as drusy masses showing only the rhobohedral terminations. It can also be massive.

  • Twinning: Dauphine twin with c the twin axis, Brazil twin with {1120} the twin plane

  • Specific gravity: 2.65

  • Index of refraction: 1.54-1.55

  • Birefringence: 0.009

  • Pleochroism: perceptible

  • Hardness: 7

  • Color: shades of yellow to reddish-orange

  • Luster: vitreous

  • Transparency: transparent to translucent

  • Cleavage: none

  • Fracture: conchoidal

  • Streak: white